微信小程序实现运动步数排行功能(可删除)

前端之家收集整理的这篇文章主要介绍了微信小程序实现运动步数排行功能(可删除)前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。

效果图如下所示:

wxml

Box"> <view bindtouchstart="touchS" bindtouchmove="touchM" bindtouchend="touchE" data-index="{{index}}" style="{{item.txtStyle}}" class="inner txt">
{{item.rank}}
<image class="item-icon" mode="widthFix" src="{{item.icon}}">
{{item.name}}
<span class="item-data">

<i class="rankpace"&gt; {{item.pace}}</i>
<!-- <span class="rankxin"&gt;{{item.xin}}</span> -->

<view data-index="{{index}}" bindtap = "delItem" class="inner del">删除

wxss

Box-sizing: border-Box; } .item-Box{ width: 700rpx; margin: 0 auto; padding:40rpx 0; } .items{ width: 100%; } .item{ position: relative; border-top: 2rpx solid #eee; height: 120rpx; line-height: 120rpx; overflow: hidden;

}

.item:last-child{
border-bottom: 2rpx solid #eee;
}
.inner{
position: absolute;
top:0;
}
.inner.txt{
background-color: #fff;
width: 100%;
z-index: 5;
padding:0 10rpx;
transition: left 0.2s ease-in-out;
white-space:nowrap;
overflow:hidden;
text-overflow:ellipsis;
}
.inner.del{
background-color: #e64340;
width: 180rpx;text-align: center;
z-index: 4;
right: 0;
color: #fff
}
.item-icon{
width: 64rpx;
height: 64rpx;
vertical-align: middle;
margin-right: 16rpx;
margin-left:13px;
border-radius:50%;

}

.item-data{
float: right;
margin-right:5%;}

.rankpace{
color: #fa7e04;
}

js

删除按钮宽度单位(rpx) },onLoad: function (options) { // 页面初始化 options为页面跳转所带来的参数 this.initEleWidth(); this.tempData(); },onReady: function () { // 页面渲染完成 },onShow: function () { // 页面显示 },onHide: function () { // 页面隐藏 },onUnload: function () { // 页面关闭 },touchS: function (e) { if (e.touches.length == 1) { this.setData({ //设置触摸起始点水平方向位置 startX: e.touches[0].clientX }); } },touchM: function (e) { if (e.touches.length == 1) { //手指移动时水平方向位置 var moveX = e.touches[0].clientX; //手指起始点位置与移动期间的差值 var disX = this.data.startX - moveX; var delBtnWidth = this.data.delBtnWidth; var txtStyle = ""; if (disX == 0 || disX < 0) {//如果移动距离小于等于0,文本层位置不变 txtStyle = "left:0px"; } else if (disX > 0) {//移动距离大于0,文本层left值等于手指移动距离 txtStyle = "left:-" + disX + "px"; if (disX >= delBtnWidth) { //控制手指移动距离最大值为删除按钮的宽度 txtStyle = "left:-" + delBtnWidth + "px"; } } //获取手指触摸的是哪一项 var index = e.target.dataset.index; var list = this.data.list; list[index].txtStyle = txtStyle; //更新列表的状态 this.setData({ list: list }); } },touchE: function (e) { if (e.changedTouches.length == 1) { //手指移动结束后水平位置 var endX = e.changedTouches[0].clientX; //触摸开始与结束,手指移动的距离 var disX = this.data.startX - endX; var delBtnWidth = this.data.delBtnWidth; //如果距离小于删除按钮的1/2,不显示删除按钮 var txtStyle = disX > delBtnWidth / 2 ? "left:-" + delBtnWidth + "px" : "left:0px"; //获取手指触摸的是哪一项 var index = e.target.dataset.index; var list = this.data.list; list[index].txtStyle = txtStyle; //更新列表的状态 this.setData({ list: list }); } },//获取元素自适应后的实际宽度 getEleWidth: function (w) { var real = 0; try { var res = wx.getSystemInfoSync().windowWidth; var scale = (750 / 2) / (w / 2);//以宽度750px设计稿做宽度的自适应 // console.log(scale); real = Math.floor(res / scale); return real; } catch (e) { return false; // Do something when catch error } },initEleWidth: function () { var delBtnWidth = this.getEleWidth(this.data.delBtnWidth); this.setData({ delBtnWidth: delBtnWidth }); },//点击删除按钮事件 delItem: function (e) { //获取列表中要删除项的下标 var index = e.target.dataset.index; var list = this.data.list; //移除列表中下标为index的项 list.splice(index,1); //更新列表的状态 this.setData({ list: list }); },//测试临时数据 tempData: function () { var list = [ { rank: "1",txtStyle: "",icon: "/images/my.png",name: "李飞",pace: "23456",},{ rank: "2",name: "张叶",pace: "23450",{ rank: "3",name: "王小婷",pace: "22345",{ rank: "4",name: "袁经理",pace: "21687",{ rank: "5",name: "陈雅婷",pace: "21680",{ rank: "6",name: "许安琪",pace: "20890",{ rank: "7",name: "里俊飞",pace: "20741",{ rank: "8",name: "李小俊",pace: "19511",{ rank: "9",name: "陈俊飞",pace: "19501",] // this.setData({ list: list }); } })

总结

以上所述是小编给大家介绍的微信小程序实现运动步数排行功能(可删除)。编程之家 jb51.cc 收集整理的教程希望能对你有所帮助,如果觉得编程之家不错,可分享给好友!感谢支持

原文链接:https://www.f2er.com/weapp/31663.html

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